Economics: Ask for a lifestyle-cycle Value Evaluation with utility amount projections and potential incentives. Ammonia is toxic but has zero GWP. Packaged GAHPs keep the ammonia circuit outdoor or in mechanical rooms per code with proper air flow and, in which needed, leak detection. Abide by community codes and producer https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/